package com.heima.user.service.impl;


import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.pojos.ApUser;
import com.heima.model.user.dtos.LoginDto;
import com.heima.user.mapper.ApUserMapper;
import com.heima.user.service.ApUserService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.utils.common.AppJwtUtil;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.DigestUtils;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;

/**
 * <p>
 * APP用户信息表 服务实现类
 * </p>
 *
 * @author zhangsan
 */
@Slf4j
@Service
@Transactional
public class ApUserServiceImpl extends ServiceImpl<ApUserMapper, ApUser> implements ApUserService {

    @Override
    public ResponseResult login(LoginDto loginDto) {
        //1.正常登录
        if (StringUtils.isNotEmpty(loginDto.getPhone()) && StringUtils.isNotEmpty(loginDto.getPassword())) {
        //1.1查询用户
            ApUser apUser = getOne(Wrappers.<ApUser>lambdaQuery().eq(ApUser::getPhone, loginDto.getPhone()));
            if(apUser==null){
                //用户不存在
                return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST);
            }
            //1.2获取密码并对比密码
            String salt = apUser.getSalt();
            String password = loginDto.getPassword();
            password = DigestUtils.md5DigestAsHex((password+salt).getBytes(StandardCharsets.UTF_8));
            //密码比较
            if(!password.equals(apUser.getPassword())){
                //密码错误,抛出异常
                return ResponseResult.errorResult(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR);
            }
            //1.3返回数据  JWT
            Map<String,Object> map =new HashMap<>();
            map.put("token", AppJwtUtil.getToken(apUser.getId().longValue()));
            apUser.setSalt("");
            apUser.setPassword("");
            map.put("user",apUser);
            return ResponseResult.okResult(map);
        }else{
            //2.游客登录
            Map<String, Object> map = new HashMap<>();
            map.put("token", AppJwtUtil.getToken(0l));
            return ResponseResult.okResult(map);
        }
    }
}
